Bibliography
Cavendish, M 2010, Mammal Anatomy: An Illustrated Guide, Paul Bernabeo,Tarrytown, NY.
Google Images n.d., Pictures and images, Google, accessed 12 September 2014, <https://www.google.com/imghp>.
Hillendale Health n.d., Respiratory System, Hillendale Health, accessed 12 September 2014, <http://hes.ucfsd.org/gclaypo/repiratorysys.html>.
InnerBody n.d., Digestive System, HowToMedia, accessed 12 September 2014, <http://www.innerbody.com/image/digeov.html>.
NatureWorks 2014, Northern Flying Squirrel - Glaucomys sabrinus, New Hampshire Public Television, accessed 12 September 2014, <http://www.nhptv.org/natureworks/northernflyingsquirrel.htm>.
New Health Guide 2014, Excretory System Organs, New Health Guide, accessed12 September 2014, <http://www.newhealthguide.org/Excretory-System-Organs.html>.
Petrow, A 2014, Class notes, Nicholas Butler, Mercy College Mackay.